外研版（2019）必修第三册Unit 3 The World of Science Using Language 课件(共20张PPT)
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| 名称 | 外研版（2019）必修第三册Unit 3 The World of Science Using Language 课件(共20张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 1.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-05-14 12:28:02 | ||
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(共20张PPT)
B3U3 The world of science
Grammar——Present perfect passive
现在完成时的被动语态
1.I'll be talking to Dr Richard Fairhurst,whose new book
The New Age of Invention has just been published.
2.I guess you have been asked about the title of your book before.
3.In addition,important advances have been made in medicine and
science environmental thanks to increasing computer power.
语法感知
Verb form
被动
have / has + been + v-ed
定义
主动语态表示主语为动作的执行者,被动语态表示主语为动作的承受者。现在完成时的被动语态强调过去的动作对现在造成的影响或结果且主语为动作的承受者，表示“……已经被……”
Look at the sentences from the reading passage and answer the questions. (P38-1)
Activity 1: Look and answer
0,000 people reading my blog! b I love to photograph the rising sun, …
a. I guess you have been asked about the title of your book before.
b. New inventions like 3D printers have been used to make replacement
hearts and bone parts.
Q1. What has happened to “you” in sentence (a)
Someone has asked “you” about the title of your book before.
Q2. Who has used new inventions to make replacement hearts and
bone parts in sentence (b)
People have used 3D printers to make replacement hearts and
bone parts.
Look at the sentences from the reading passage and answer the questions.
Activity 1: Look and answer
0,000 people reading my blog! b I love to photograph the rising sun, …
a. I guess you have been asked about the title of your book before.
b. New inventions like 3D printers have been used to make
replacement hearts and bone parts.
Q3. What is the difference between the two groups of sentences
c. I guess someone has asked you about the title of your book before.
d. People have used new inventions like 3D printers to make
replacement hearts and bone parts.
Group 1
passive form with the subjects
Group 2
active form with the subjects
Q4. Why does the author choose to use the passive form instead of the active form in the reading passage
The author chooses to use the passive form instead of the active form to emphasise what has been done, rather than who or what does the action.
结构
现在完成时的被动语态的基本结构是“主语十have/has been十过去分词”。在不同的句式中,其具体形式也有所不同。
句式 结构
肯定句 主语+have/has been done(十其他),
否定句 主语+have/has not been done(十其他)
一般疑问句 Have/Has十主语+been done(十其他)
特殊疑问句 特殊疑问词+have/has+主语+been done(十其他)
现在完成时的被动语态有两种情况：
1.表示一个被动动作发生在说话之前，强调对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。
The bike has not been repaired yet.
2.表过去开始的被动动作一直持续到现在, 常连用的时间状语有：for+段时间，since +时间状语(从句)，these days（现今，目前）, so far, up to now, in the last/ past few years等。
3.现在完成时的被动语态与一般过去时被动语态的区别：
（1）一般过去时被动语态表示一个被动的动作发生在过去，其结果对现在没有影响；
（2）现在完成时被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响或结果。
The machine___________________(repaire)．
机器已经修好了。
(动作发生在过去，对现在有影响，修好了。)
The machine ________________(repaire) yesterday．
机器昨天修了。
has been repaired
was repaired
(只说明动作发生在昨天。)
以下情况一般使用被动语态
Present perfect passive
1. 不知道或者没有必要说明动作的执行者是谁。
Such books have been written for children.
（已经为儿童编写这类图书了。）
2. 强调动作的承受者，而不强调动作的执行者。
All these products have been tested.
（这些产品都经过测试了。）
3. 动作的执行者很模糊。
The letter has been opened.
（这封信被人拆开了。）
4. 有时为了礼貌的需要，避免说出动作的执行者。
They have been told many times not to make noises.
（已经有人多次跟他们说别那么大声了。）
Present perfect passive
Activity 2: Read and Rewrite
Rewrite the underlined parts using the present perfect passive.(P38-A2)
Many things in our lives have already been affected,
3D-printed hamburgers have been served to customers in some restaurants in London. But perhaps the most significant success that has been achieved to date is in medicine.
Human body parts, including a beating heart, have been made with 3D printing technology.
A new 3D-printed shell has been given to a turtle injured in a forest fire!
Activity 3:
Imagine you are Dr Moore. Look at the pictures and tell the police about the damage and loss to your lab.
Use the present perfect passive where appropriate. (P39-A3)
II. 用括号内动词的正确形式填空。
1. The same mistake _______________ (make) many times.
2. More than 100 famous films ________________ (show) in the city since July.
3. For his tenth birthday, Carl wanted a bicycle but ________ (give) a guitar by his parents.
4. Although it _______________ (play) many times, he still loves it.
5. Three new schools _______________ (open) in our city in the past 5 years.
has been made
have been shown
was given
has been played
have been opened
1. The lock on the door has been broken.
2. The window has been broken.
3. My two laptops have been stolen.
4. Beakers and test tubes have been destroyed.
5. The book case has been opened, and some
files have been taken away while others
have been thrown everywhere.
6. The robot has been damaged.
1.Write down fifteen words of this unit on P135 three time.
2.Complete the practices in guiding book on P56-58.
Homework
Thank You
B3U3 The world of science
Grammar——Present perfect passive
现在完成时的被动语态
1.I'll be talking to Dr Richard Fairhurst,whose new book
The New Age of Invention has just been published.
2.I guess you have been asked about the title of your book before.
3.In addition,important advances have been made in medicine and
science environmental thanks to increasing computer power.
语法感知
Verb form
被动
have / has + been + v-ed
定义
主动语态表示主语为动作的执行者,被动语态表示主语为动作的承受者。现在完成时的被动语态强调过去的动作对现在造成的影响或结果且主语为动作的承受者，表示“……已经被……”
Look at the sentences from the reading passage and answer the questions. (P38-1)
Activity 1: Look and answer
0,000 people reading my blog! b I love to photograph the rising sun, …
a. I guess you have been asked about the title of your book before.
b. New inventions like 3D printers have been used to make replacement
hearts and bone parts.
Q1. What has happened to “you” in sentence (a)
Someone has asked “you” about the title of your book before.
Q2. Who has used new inventions to make replacement hearts and
bone parts in sentence (b)
People have used 3D printers to make replacement hearts and
bone parts.
Look at the sentences from the reading passage and answer the questions.
Activity 1: Look and answer
0,000 people reading my blog! b I love to photograph the rising sun, …
a. I guess you have been asked about the title of your book before.
b. New inventions like 3D printers have been used to make
replacement hearts and bone parts.
Q3. What is the difference between the two groups of sentences
c. I guess someone has asked you about the title of your book before.
d. People have used new inventions like 3D printers to make
replacement hearts and bone parts.
Group 1
passive form with the subjects
Group 2
active form with the subjects
Q4. Why does the author choose to use the passive form instead of the active form in the reading passage
The author chooses to use the passive form instead of the active form to emphasise what has been done, rather than who or what does the action.
结构
现在完成时的被动语态的基本结构是“主语十have/has been十过去分词”。在不同的句式中,其具体形式也有所不同。
句式 结构
肯定句 主语+have/has been done(十其他),
否定句 主语+have/has not been done(十其他)
一般疑问句 Have/Has十主语+been done(十其他)
特殊疑问句 特殊疑问词+have/has+主语+been done(十其他)
现在完成时的被动语态有两种情况：
1.表示一个被动动作发生在说话之前，强调对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。
The bike has not been repaired yet.
2.表过去开始的被动动作一直持续到现在, 常连用的时间状语有：for+段时间，since +时间状语(从句)，these days（现今，目前）, so far, up to now, in the last/ past few years等。
3.现在完成时的被动语态与一般过去时被动语态的区别：
（1）一般过去时被动语态表示一个被动的动作发生在过去，其结果对现在没有影响；
（2）现在完成时被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响或结果。
The machine___________________(repaire)．
机器已经修好了。
(动作发生在过去，对现在有影响，修好了。)
The machine ________________(repaire) yesterday．
机器昨天修了。
has been repaired
was repaired
(只说明动作发生在昨天。)
以下情况一般使用被动语态
Present perfect passive
1. 不知道或者没有必要说明动作的执行者是谁。
Such books have been written for children.
（已经为儿童编写这类图书了。）
2. 强调动作的承受者，而不强调动作的执行者。
All these products have been tested.
（这些产品都经过测试了。）
3. 动作的执行者很模糊。
The letter has been opened.
（这封信被人拆开了。）
4. 有时为了礼貌的需要，避免说出动作的执行者。
They have been told many times not to make noises.
（已经有人多次跟他们说别那么大声了。）
Present perfect passive
Activity 2: Read and Rewrite
Rewrite the underlined parts using the present perfect passive.(P38-A2)
Many things in our lives have already been affected,
3D-printed hamburgers have been served to customers in some restaurants in London. But perhaps the most significant success that has been achieved to date is in medicine.
Human body parts, including a beating heart, have been made with 3D printing technology.
A new 3D-printed shell has been given to a turtle injured in a forest fire!
Activity 3:
Imagine you are Dr Moore. Look at the pictures and tell the police about the damage and loss to your lab.
Use the present perfect passive where appropriate. (P39-A3)
II. 用括号内动词的正确形式填空。
1. The same mistake _______________ (make) many times.
2. More than 100 famous films ________________ (show) in the city since July.
3. For his tenth birthday, Carl wanted a bicycle but ________ (give) a guitar by his parents.
4. Although it _______________ (play) many times, he still loves it.
5. Three new schools _______________ (open) in our city in the past 5 years.
has been made
have been shown
was given
has been played
have been opened
1. The lock on the door has been broken.
2. The window has been broken.
3. My two laptops have been stolen.
4. Beakers and test tubes have been destroyed.
5. The book case has been opened, and some
files have been taken away while others
have been thrown everywhere.
6. The robot has been damaged.
1.Write down fifteen words of this unit on P135 three time.
2.Complete the practices in guiding book on P56-58.
Homework
Thank You